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Find the median of: classes 0–10, 10–20, 20–30, 30–40, 40–50 with frequencies 5, 8, 20, 10, 7.

Competition practiceStatistics
  • A25
  • B16
  • C26
  • D27

Step-by-Step Solution

; cf 5, 13, 33 → median class 20–30. Median .
Answer: C) 26

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